The Forney 61464 acid and petrolatum-based paste flux, petrolatum-based soldering paste that contains zinc chloride and ammonium chloride. The petrolatum helps protect the solder joint against corrosive attack and the paste form insures that the flux stays put until soldering. Useful on most common metals except aluminum and magnesium. It is employed mainly in plumbing and maintenance applications. Forney Industries is one of Americas longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm & ranch and do-it-yourself markets. If youve got metal working questions, weve got answers. Were committed to your success regardless of location size or needs. This product contains 2 oz. Claims for **must be made within 90 days of the date of purchase. Proof of purchase required. This **does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.